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AFE5804 Datasheet 8-CHANNEL ANALOG FRONT-END

Manufacturer: Texas Instruments

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General Description

The AFE5804 is a complete analog front-end device specifically designed for ultrasound systems that require low power and small size.

The AFE5804 consists of eight channels, including a low-noise amplifier (LNA), voltage-controlled attenuator (VCA), programmable gain amplifier (PGA), low-pass filter (LPF), and a 12-bit analog-to-digital converter (ADC) with low voltage differential signaling (LVDS) data outputs.

The LNA gain is set for 20dB gain and has excellent noise and signal handling capabilities, including fast overload recovery.

Overview

AFE5804 www.ti.com SBOS442C – JUNE 2008 – REVISED OCTOBER 2011 FULLY-INTEGRATED, 8-CHANNEL ANALOG FRONT-END FOR ULTRASOUND 0.

Key Features

  • 1.
  • 23 8-Channel Complete Analog Front-End:.
  • LNA, VCA, PGA, LPF, and ADC.
  • Mode Control for Power/Noise Optimization:.
  • Low Noise (Full-Channel): 0.89nV/√Hz (TGC Mode I) 1.23nV/√Hz (TGC Mode II) 1.03nV/√Hz (PW Mode).
  • Ultra-Low Power: 101mW/Channel (TGC Mode II) 65mW/Channel (CW Mode).
  • Low-Noise Pre-Amp (LNA):.
  • 0.75nV/√Hz.
  • 20dB Fixed Gain.
  • 280mVPP Linear Input Range.
  • Variable-Gain Amplifier:.
  • Gain Contr.

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